| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| -- | Annalise Jackson | Cashmere High School | q |
| -- | Juliet Sewell | St Margaret's College | q |
| -- | Rebecca Smithey | Combined Country High Sch | q |
| -- | Sonja Stewart | Avonside Girls High Schoo | q |
| Placing | Athlete | Team | Preliminaries |
|---|---|---|---|
| -- | Annabelle Blue | Burnside High School | q |
| -- | Lindsay Ilia | Marian College | q |
| -- | Lydia Muschamp | Riccarton High School | q |
| -- | Robyn Warburton | Christchurch Girls High S | q |
| Placing | Athlete | Team | Finals |
|---|---|---|---|
| 1 | Annalise Jackson | Cashmere High School | 1:03.30 |
| 2 | Annabelle Blue | Burnside High School | 1:05.34 |
| 3 | Robyn Warburton | Christchurch Girls High S | 1:07.87 |
| 4 | Lydia Muschamp | Riccarton High School | 1:07.90 |
| 5 | Lindsay Ilia | Marian College | 1:09.65 |
| 6 | Sonja Stewart | Avonside Girls High Schoo | 1:11.22 |
| 7 | Juliet Sewell | St Margaret's College | 1:12.21 |
| -- | Rebecca Smithey | Combined Country High Sch | DNS |